Lozar, Francesca; Tremolada, Fabrizio (2003): Calcareous nannofossil abundance in ODP Site 185-1149 sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.783929, Supplement to: Lozar, F; Tremolada, F (2003): Calcareous nannofossil biostratigraphy of Cretaceous sediments recovered at ODP Site 1149 (Leg 185, Nadezhda Basin, western Pacific). In: Ludden, JN; Plank, T; Escutia, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 185, 1-21, https://doi.org/10.2973/odp.proc.sr.185.010.2003
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Abstract:
Basal carbonate sediments recovered at Ocean Drilling Program (ODP) Site 1149 lie directly on magnetic Anomaly M12. They contain abundant and moderately well preserved calcareous nannofossils. Two nannofossil zones are recognized: the lower Calcicalathina oblongata Zone and the upper Lithraphidites bollii Zone, indicating a late Valanginian-late Hauterivian age. The close occurrence of two significant bioevents, the first occurrence (FO) of L. bollii and the FO of Rucinolithus terebrodentarius in Core 185-1149B-20R, together with dip data recorded during in situ geophysical logging, suggest the presence of an unconformity that corresponds to the lower Hauterivian sedimentary section. The continuous occurrence of L. bollii is reported for the first time in sediments from the Pacific Ocean. Other marker species regarded as cosmopolitan (e.g., C. oblongata) have a sporadic occurrence. Nannoconids, very useful zonal markers for Tethyan areas, are virtually absent. The presence of an unusually high abundance of Diazomatolithus lehmanii is also recorded and correlates with the Valanginian 13C positive excursion.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 31.332633 * Median Longitude: 143.367467 * South-bound Latitude: 31.313200 * West-bound Longitude: 143.351000 * North-bound Latitude: 31.342500 * East-bound Longitude: 143.400400
Date/Time Start: 1999-05-26T07:25:00 * Date/Time End: 1999-06-13T16:15:00
Event(s):
185-1149B * Latitude: 31.342200 * Longitude: 143.351000 * Date/Time Start: 1999-05-26T07:25:00 * Date/Time End: 1999-06-02T20:00:00 * Elevation: -5817.5 m * Penetration: 445.2 m * Recovery: 32.93 m * Location: North Pacific Ocean * Campaign: Leg185 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 284.6 m cored; 151.1 m drilled; 11.6 % recovery
185-1149C * Latitude: 31.342500 * Longitude: 143.351000 * Date/Time Start: 1999-06-02T20:00:00 * Date/Time End: 1999-06-07T03:00:00 * Elevation: -5817.6 m * Penetration: 426.7 m * Recovery: 6.39 m * Location: North Pacific Ocean * Campaign: Leg185 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 76.9 m cored; 0 m drilled; 8.3 % recovery
185-1149D * Latitude: 31.313200 * Longitude: 143.400400 * Date/Time Start: 1999-06-07T05:15:00 * Date/Time End: 1999-06-13T16:15:00 * Elevation: -5867.3 m * Penetration: 440.4 m * Recovery: 28.75 m * Location: North Pacific Ocean * Campaign: Leg185 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 168.2 m cored; 0 m drilled; 17.1 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Lozar, F; Tremolada, F (2003): (Table 1) Calcareous nannofossil abundance in ODP Hole 185-1149B sediments. https://doi.org/10.1594/PANGAEA.783926
- Lozar, F; Tremolada, F (2003): (Table 2) Calcareous nannofossil abundance in ODP Hole 185-1149C sediments. https://doi.org/10.1594/PANGAEA.783927
- Lozar, F; Tremolada, F (2003): (Table 3) Calcareous nannofossil abundance in ODP Hole 185-1149D sediments. https://doi.org/10.1594/PANGAEA.783928